Distance between cities › USA › South Dakota › Iona, SD › Distance from Iona to Decherd Book Hotels

Distance from Iona, SD to Decherd, TN

Distance

1,125 mi

Time

21 hours 34 mins

Gas Cost

$105 - $204

There are 915.74 miles from Iona to Decherd in southeast direction and 1,125 miles (1,810.51 kilometers) by car, following the I-24 route.

Iona and Decherd are 21 hours 34 mins far apart, if you drive non-stop .

This is the fastest route from Iona, SD to Decherd, TN.

Iona, SD and Decherd, TN are in the same time zone (CDT). Current time in both locations is 1:08 pm.

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Lowest Price Rental Cars in Iona, SD

Planning on renting a car to go from Iona, SD to Decherd, TN? Here there are some offers to rent a car in Iona, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Iona »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 45.17 gallons of gas to cover the route between Iona, SD and Decherd, TN.

The estimated cost of gas to go from Iona to Decherd is $147.36.

During the route, an average car will release 885.05 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Iona, SD and Decherd, TN

If you want to meet halfway between Iona, SD and Decherd, TN or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.960616 and -93.201944, or 38º 57' 38.2176" N, 93º 12' 6.9984" W. This location is 562.42 miles away from Iona, SD and Decherd, TN and it would take approximately 10 hours 47 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Napton, MO, situated 575 miles from Iona, SD and 564 miles from Decherd, TN. It would take 11 hours 19 mins to go from Iona to Napton and 10 hours 49 mins to go from Decherd to Napton.